Improved machine for mixing- coloring-matter with paper-pulp



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etaient @time JAMES WRINKLE, or M-As'sAoHUsETTsj,

' Letters Pct-ent No. 85,157, dateelDece-mbc-r 22, 1868.

. IMPROVE!) MACHINE FOR MIXING- COLORING--MATTER WITH PAPER-PULP.

The Schedule referred to in lthese Letters Patent and making part of thesame -which will enable those skilled in the ait to make and use thesame, reference being had to the accompanying drawings, ibrming part otthis speciiication.

This inventnm relates to a new and useiiil improvement in paper-makinmachinery, and has for its object the prevention ofthe blue spotsa-ndlumps being formed or madein the paper during thc process ot'manufacture, a result dueto the blue coloring-matter which is placed inthe pulp, and the. adhering together oi' certain tibres or particlesofthe same.

.In the accompanying sheet of drawings- Figure lY is a plan or top viewoi my invention Figure 2, a vertical section of the same, taken in theline a' a', lig. l'. v l

Similar letters ot' reterence indicate corresponding parts.`

A represents a vat,-whiel1 may be of rectangular or other form, and

B is a screen placed over the vat, and connected at one 'end to the topot' the same by joints aiV a.

These parts being ot' usual construction, do not require aminutedescription.

C C are two narrow compartments at one end ofthe Y vat, C communicatingwith A by means of an opening, b.

D is a pump of the rotary o1' fan kind, which communicates with thecompartment O-by means of a pipe, E; and

F is an eduction-pipe, which communicates with the fan-pump and thecompartment G,as shown clearly in The pulp is placed on the screen B,and passes through the same into the vat A, the usual amount of bluecolcling-matter being put into the pulp. I

The latter passes through the opening b into the compartment Q, fromwhence it is drawn out by the pump D, and forced into theoompartment C.

The pulp passes' from the compartment C through an opening, c, upon theordinary wire cloth, (not shown,) where the drying-process andsheet-forming process are gone through with.

By thus taking the pulp 'from the vat, and forcing or pumping it intoacompartment, from whence it passes upon the wire cloth, all ,lumps andblue spots are avoided, as the pulp and coloring-matter are kept Wellmixed, the fibres or particles ofthe pulp'prevented from uniting orforming into lumps; and, it' necessary or desired, a smallgrinding-apparatus may be connected with the pump, in order to stillfurther comminute, grind, or mix the pulp and coloring-matter. With theuse of va rotary or fan-pump, however, I do not deem this neoessary. Iclaim as new, and desire to, secure by 1Letters Patent* rlhe drawing ofpaper-pulp from the vat and ejecting it into the compartment, from whichit passes upon the wire cloth by" means vof a pump, rotary orreciprocating, substantial-lv as and for the lpurpose 'herein set forth.i l

JAMES VVRINKLE, Witnesses:

CHARLES C. BENTON, Janus F. BnN'ros.

